Routing machine



.J. W. DIXON April 25, 1933.

ROUT ING MACHI NE Eiled April 18, 1932 W F. 0 mm m I ga U/ 2 05 baPatented Apr. 25, 1933 UNITED STATES JOHN W. DIXON OF INDIANAPOLIS,INDIANA ROUTING MACHINE Application filed. April 18,

5 simple mechanism that may be produced and sold at a low price and thatmay be em; ployed to secure the necessary'accuracy in levelling theblocks on which plates are mounted to exactly type-high dimensions.

The invention has numerous advantages among which are the particularadjustment for elevation of the rotary bit withoutinterfering with thehorizontal swinging of the bit to follow desired contours; theemployment of a swinging motor support arm which may be supported by apostat a fixed elevation in levelling operations; and the combination ofa hinged motor support arm which may be adjusted vertically at one endto permit free swinging of the other end and also which may bevertically adjusted and supported at the free end whereby a combinationof operations may be performed by the single mechanism. These and otherobjects and advantages will become apparent to those versed in the artfrom the following description of the invention as illustrated in thepreferred form in the accompanying drawing, in which Fig. 1 is a frontview in perspective of a device embodying my invention;

Fig. 2, a fragmentary front elevation; and

Fig. 3, a fragmentary front elevation on an enlarged scale of the outerarm bar.

Like characters of reference indicate like parts in the several views inthe drawing.

I mount a post on a table 11, preferably near the rear left hand cornerthereof to extend vertically from the table in a fixed position. A bar12 is formed to have a vertically disposed sleeve 13 formed integrallytherewith at one end to have the internal bore of the sleeve open at thebottom and closed at the top and of a diameter which will permit thesleeve to be placed down over the upper end of the post 10 with a closesliding fit. A screw 1 1 is screw-threadedly passed down through the topclosed end of the sleeve to bear against the upper end of the post 10whereby the sleeve may be low- 1932. Serial No. 606,041.

ered or raised along thepost by backing the screw out or turning it downthrough the sleeve end. A thumb nut 15 is screw-threadedly carried onthe screw 14 above the sleeve to serve as a lock nut when turned upagainst the sleeve tohold the screw in any desired position ofadjustment.

i The other end of the bar 12 is bifurcated to form a yoke with the topand bottom ears I 16 and 17 between which is rockably carried the innerend of an outer bar 18. A screw 19 having a sharpened end is passedvertically down through the ear 16 to enter a conical seat in the end ofthe bar 18, and a screw 31 is passed vertically up through the ear 17 toenter into a conical seat in the bar 18 whereby the bar 18 is carriedrockably mounted on the arm 18 in a vertical position to permit too-lsto be attached to the lower end of the armature shaft and a lamp 21 ispreferably mounted on the arm immediately back of the motor with ashield and reflector 22 over its upper side.

For routing purposes, a routing tool or bit 23 is fixed to the motor andthe elevation of its lower end is adjusted by the screw 14. The entirehinged arm composed of the two bars 12 and 18 may be lifted up to carrythe sleeve 13 off of the post 10 and the arm laid aside, if desired,until'the mounted plate 24 is mounted on the table 11, or the screw 14:may be run down to lift the routing tool 23 to clear the plate as thetool may be swung horizontally around through. the hinged joint betweenthe bars 12 and 18 and the sleeve 13 on the post 10. Various depths maybe cut on .the plate by adjusting the screw 9O 14, or a constant depthmaintained by a fixed adjustment. By reason of the hinging of the arms12 and 18 one to the other and swivelling the sleeve of the arm 12 onthe post 10, the tool 23 may be shifted fore and r aft, sideways or atany angle by gripping the handle end 25 of the bar 18 accordingly. Whenit is desired to employ the device to level the plate block to bring ittype high, the block is turned over,- Figs. 2 and 3, the

proper cutting tool 26 fixed to the motor, and

the under side of the tool gaged to be type high. A post 27 has an upperscrew-threaded end passed through a. vertical bore 28 in the outer endof the bar 1.8 and carries the thumb nuts 29 and 30 respectively aboveand below the bar. The lower end of the foot 27 is rested on the table11 and has a stud 32 screw-threadedly engaged within a hole in thetable. The screw 14 and the nut 30 are properly adjusted to space theend of the tool 26 from the table and when the type high clearance isobtained as determined by a gage 31, the nuts 15 and 29 are run down tosecure that adjustment. The block is moved and shifted around under thetool until it is planed off as required.

While I have here shown and described my invention in the form as nowbest known to me it is obvious that structural changes may be madetherein without departing from the spirit of the invention; and I,therefore, do not desire to be limited to that precise form beyond thelimitations imposed by the following claims. a

I claim:

1. In a routing and levelling device, a table, a post carried by thetable, an arm, a sleeve closed at the top carried by the arm revolublyfitted; over the post in a manner tobe lifted freely off of the post, anadj usting screw screw-threadedly passed through the closed end of thesleeve to abut the end of the post, the contacting surfaces between thepost and the sleeve being smooth, and an electric motor carried on thearm.

2. In a routing and levelling device,a table, a vertically disposed postfixed to the table, a sleeve revolubly fitted about said post' andhaving an upper closed end, said sleeve being adapted to slip verticallyoff the post, the sides of the post and the bore of the sleeve beingsmooth, a screw screwthreadedly passed down through the upper closed endof said sleeve to abut the top end of said post whereby the sleeve maybe raised and lowered along said post; by rotation of the screw, an armcarriedby the sleeve, and a motor mounted on the arm.

I 3. In a routing and levelling device, a table, a post carried by thetable,.an arm, a

sleeve carried by the arm revolubly fitted over the post, and adjustingscrew screwon said end above and below the arm.

4. In a routing and levelling device, a table, a post carried by thetable, an arm, a sleeve carried by the arm revolubly fitted threadedlypassed through the sleeve to abut the end of the post, and an electricmotor carried on thesaid arm having a vertical bore toward its outerend, a post adapted to rest on said table and having a screw-threadedend formed to fit through said arm bore, and adjusting nuts on said end,said arm comprising two bars hinged by their ends one to the other, oneof said ends having a yoke receiving the end of the other bar, said lastend having conical sockets and screws with sharpened ends screwedthrough the arms" of the yoke into the respective sockets.

5. In. a routing and levelling device, a table, a vertically disposedpost fixed to the table, a sleeve revolubly fitted about said post andhaving an upper closed end, said sleeve being adapted to slip verticallyoff the post, a screw screw-threadedly passed down through the upperclosed end of said sleeve to abut the top end of said post whereby thesleeve may be raised and lowered along said post by rotation of thescrew, an arm carried by the sleeve, and a motor mounted on the arm,said arm comprising a bar fixed to said sleeve and a second bar hingedto the first bar and carrying said motor, said second bar having avertical bore near its outer end, and a post having a screw-threadedupper end adapted to pass through said vertical bore and to be engagedby its lower end by said table, and-a lock-nut on said screwthreadedend. V

In testimony whereof I aflix. my signature.

JOHN W. DIXON.

overv the post, an adjusting. screw screw- 7

